arch/unicore32/include/asm/io.h

   1 /*
   2  * linux/arch/unicore32/include/asm/io.h
   3  *
   4  * Code specific to PKUnity SoC and UniCore ISA
   5  *
   6  * Copyright (C) 2001-2010 GUAN Xue-tao
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12 #ifndef __UNICORE_IO_H__
  13 #define __UNICORE_IO_H__
  14
  15 #ifdef __KERNEL__
  16
  17 #include <asm/byteorder.h>
  18 #include <asm/memory.h>
  19 #include <asm/system.h>
  20
  21 #include <asm-generic/io.h>
  22
  23 /*
  24  * __uc32_ioremap and __uc32_ioremap_cached takes CPU physical address.
  25  */
  26 extern void __iomem *__uc32_ioremap(unsigned long, size_t);
  27 extern void __iomem *__uc32_ioremap_cached(unsigned long, size_t);
  28 extern void __uc32_iounmap(volatile void __iomem *addr);
  29
  30 /*
  31  * ioremap and friends.
  32  *
  33  * ioremap takes a PCI memory address, as specified in
  34  * Documentation/IO-mapping.txt.
  35  *
  36  */
  37 #define ioremap(cookie, size)           __uc32_ioremap(cookie, size)
  38 #define ioremap_cached(cookie, size)    __uc32_ioremap_cached(cookie, size)
  39 #define iounmap(cookie)                 __uc32_iounmap(cookie)
  40
  41 extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
  42 extern void ioport_unmap(void __iomem *addr);
  43
  44 /*
  45  * Convert a physical pointer to a virtual kernel pointer for /dev/mem
  46  * access
  47  */
  48 #undef xlate_dev_mem_ptr
  49 #define xlate_dev_mem_ptr(p)    __va(p)
  50
  51 #endif  /* __KERNEL__ */
  52 #endif  /* __UNICORE_IO_H__ */